Hose clamp



Dec. a, 1925. 1,564,837

J. A. EDEBORG HOSE CLAMP Filed April 20. 19255l 45,00] "Imm,"

'WOM" lling-7 Patented Dec. 8, 1925.

UNITED STATES PATENT ori-"m12:I`

JOHAN AUGUST EDEBORG, 0F ESKILSTUNA, SWEDEN.

" Hoen CLAMP.

Application 1ed`Apri1 20, 1923. ySerial No.` 633,396.

the band and in which a lever is journalled,l

to one arm of which the other end of said band is adapted to be attached, and by thef turning or swinging of which lever in towards the band the ends of the band will be moved towards one another and thus the band tightened. l Y

The present invention contemplates an improvement in hose clamps of the type indicated and has for its purpose to render possible an easy and simple variation or adjustment of the distance which exists between the points of attachment of the'band to the ends of thebuckle when the lever is in the position swung in towards the band, and in this manner to make the hose clampV readily adaptable to hose of different thicknesses. For thispurpose the invention is principally characterized by that a number of laminze or distance pieces are movably provided in the link in suchv manner Vthat the end `of the band may be attached to the linkeither directly or with one or more distance pieces interposed between the band and the link.

The invention further comprises the improvement that the fulcrum or pivotpin of the lever is movable in slots in the link which slots run approximately in theidirection of the radius ofthe hose clamp. When a number of distance pieces are interposed between one end of t-he band and the link thisarrangement makes it easier to hook the arm of thelever to the other end of the band as vthe fulcruinr or pivot pin of the lever may move in the slots in the link.

Y The accompanying drawing illustrates two embodiments of the inventionby way vof example. l Fig.. 1 shows an endvew of the one embodiment of the hose clamp partially in section, andFigs.y 2 andY 8 show` the hose clamp viewed from abovejand from one side, respectively', in 1, Figs.l 1,5 and 6' are similar views of the other embodiment of the hose clamp.

The ends of the flexible andl preferably elastic metal band 1 are formed as hooks 2 and 3. The buckle consists of a ychape or link 7 having at one end a cross piece 8 to which one of the hooks 2 and zrmayv be attached after the band has been placed around the hose 11 which is pushed onto the tube or nozzle 10. In the other end of the vlink 7 a lever 5, 9 is journalled by meansvof its pivots 6. The short arm 5 of said lever possesses va cross piece t which may be introduced into the other of theheoks 2 and 3 after which the long arm 9 is swung down or in towards the band 1 whereby it is obvious v thaty the ends 2 and 3 of the band will be moved towards one another so that the band becomes tightened around the hose 11.

In the embodiment illustrated in Figs. 1, 2 and Sthe means for variationor adjustment of the distance between the ends of the band when the 'arm 9`is swung in towards'the band, consists of a number of laminae or distance. pieces '14 in the link 7. As'shown Fig. 3, said distancey pieces 14 have angular cuts at their ends by means ofk which they are retained and slide on angular guides`15` in the sides of the link'7l By this means the hook 8 on the band 1 may be locked eitherjdi-` rectly to the outer cross piece 8 of the link'7', or one or more of the distance pieces lltmay be interposed between `the hook 3 and the crosspiece 8', as shown in Figs. 1 and2.

In the long arm 9 of the lever 5,9 there is provided an oblong slot 16. A small handle or knob 17 is rotatably secured to the band 1 and when adjusted inthe peripheral direction of the band, it 'may be passed through the slot 16 when it will simultaneously pass through a corresponding-slot ina spring 18 whichV is secured to the arm y9. After said spring 18 has vbeen pressed down, the knob v 17 may be turned across the slot 16 in the arm 9, and when' the spring 18, is released its two halves or Shanks will spring into recesses 119' in the under side ofthe knob 17 whereby the knob will ofcourse be securely locked'in its position across the slot. v,It willl be understood that ity would Valso be possible to vuse af spring eXtendin-gonly along one side of the slot` 16.

In the under side of thelink'there is a recessjor cavityv 12 .providing a-'space o r clearance-.for the band'l so that said" balid will not prevent the remaining portions of the inner face of the link from reaching down to the hose, and the lateral portions 134 of the link on either side of said cavity and of the band will thus be pressed against the hose l1 so that said hose will'besecurely pressed against the tube or nozzle 10` also between the ends 2 and 3 of the band l.

In the embodiment illustrated in Figs. 4, 5 and 6 the band 2l also has its 'ends formedV as hooks 22 and 23. Thetightening device or the buckle also consists of a chapeorlink 27 in which a lever 25, 29" is journalled on a pin 26. The link isprovided at its opposite end with a cross piece or stay 28 to which the end 23 ofthe band may be hooked. The short arm 25 ofthelever 25, 29 isafterwards hooked to theend 22 ofthe band, afteriwhich, the lever is swung' in towardsithe band 21 whenfit `will be evidentthat, the vends ofthe .band will ,be moved towards one another, so.A

that the bandbeoomes tightened around thehose or the like: around-,which the band has been placed. distancefpiecesthe provision of which ren ders: the hose clamp easily applicable to hose of different thicknesses, consist ofmetal pins or staifs34. Ars shownin Fig. 5, the .ends of said staffs 34. are introduced into slots in the, side members of-thellink27v each of said side members consisting. of a plate 48-providedl with saidk slot and. an outer plate; 49 closingA said slot outwards.; The two side members of thelinksare joined by the cross piece or stay 28 andr a secondstay 50iboth of whichV are riveted on the outer sides of the link. i

Vlhen, 'as illustrated Lin Fig. 4, a number of distance pieces of staffs34- are interposed between thestay 28,and theend 23 ofthe band, they link 2 7y hasofcourse a tendency, particularly ,when the buckle is being closed, to adjust itselffin what may` be termed the peripheral continuationof Athe band, and in .y view.hereof,`and 'in order to facilitate the engagement of theV lever arm 25, with the end'22 ofthe band, this embodiment shows the improvement thatthe pin l26 is movable in slots-,5.1. inthe link which' yslots .extend approximately in the radial direction of the hose clamp. When attaching the lever arm 25.` to the hook22`oflthe band thepin 26 may thus move in the, slots. 5l awayv yfrom the band,`so that theengagement 'is facilitated, andA when afterwards, the'long arm 2 9 of the lever is` swung in 'towards the band thelpin' 26 will move..l inwards in the slots 51, particularly when said slots, asshown in Eig-@ghave such inclined'directionyrelativelyvto the radiusltha't the Vtensionk of the band tends to move'f the pin 2 6,f tnvvfards1 the inner ends of the'slots' 5l'. f Y V,The dlerent y p arts, are: maintainedv inv the last mentioned-fposition. byfrthe. tension of thegband.' tutfin eine; tipi: 'safeguattiithe Iny this embodiment thev spring 54, after which the lever army 29 isl swung out from the band.

I'claim:

l. In al hose clamp the combination of a buckle comprisingv a link and a lever jonrnalled at one end of said link, a flexible metal band having meansat oneendi fory attaclnngg'the band to-one` arm of said lever and having a'hook at its other endvfor at? tachment, to. said link, and a numbenotdis;

tancepiecesniovablein said linkand adapt ed to be interposedv in differentr numbers beltweensaid-link and saidhookjfonA said bandj., 2.. In a hose clamp the combination of a. bucklel comprising a `link. and a lever: jour.,v

nalled atone end of -said link in slots' inthe same, a fieXible metal handhaving means at'.

one end for attachingthevbandto. onearm of said lever and havinga' hook'at theother end forattachment. to said link, and Va number of distance piecesmovablefin,said link and adapted to be interposed in different numbersbetween said linkV andy said` hook on saidband.l 3. In ahose clamp the, combinationrof a buckle comprising a link and alever'jour nalled atv onevv end Ofsaidflink in slotsfin the sa1ne,a flexible metal band having means at one end'for attaching the band tov one arm of said lever and having. a hook at the other end foratt'achment, to said link, said linkhaving a clearance space.` in its under face forrecseiving said band, land a number of5 distance pieces movablein` said link and adapted vto bel interposed in different numbers'.` between said link and said hoo-k on saidband. f

4. In aI hose clamp the combination of a buckle comprising a linkv and lai leven journalled at one Lend o-fis'aid link in slots in the; same, a flexible metal band having means. atv one end A"for, attaching` thefband to one j arm of i said lever .and having, a hook at itsotlier. end for attachment tosaid link, avnumber of'dis'tan'ce pieces'movable in i said link and adaptedl tobeinterposedfin" different numbersbetween said link and: said hookon` said .f band, said. leverhaving .at slot, a hookfsecuredv to, said band and. adaptedv tov project. through said, slot in .fsaid lever,

andf' a springiaictuated; catch inv said; lever l `metal band having means at one end for attaching the band to one arm of said lever and having a hook at the other end for attachment to said link, a number of distance pieces movable in said linkl and adapted tol be interposed in dilferent numbers between said link and said hook on said band,fsaid leverl having a slot, a knob rotatably secured to said band and adapted to project through said slot and to be turned across the same, said knob having at least one recess in its under lface, and a spring secured to said lever alongside of said slot inthe saine and adapted to engage said recess in said knob.

6. In a hose clamp the combina-tion of a buckle comprising a link and a lever journalled in said link, a flexible metal band having means at one end for attaching the band to one arm of said lever and having a hook at the other end for attachment to said link, said link having a clearance space in its under face for receiving saidv band, and a number of distance pieces movable in `said link and adapted to be interposed in different numbers between said link and said hook on said band.

7. In a hose` clamp the combination of a buckle comprising a link Yand a lever journalled in said link, a` flexible metal band having means at one end for attachingthe band to one arm of said lever and having a hook at its other end for attachment to said link, a number of distance pieces movable in said link and adapted to `be interposed in different numbers between said link and said hook on said band, said lever having a slot, a hook secured to said band and adapted to project through said slot in said lever, anda. spring-actuated catch in said lever adapted to engage said hook.

JOHAN AUGUST EDEBORG. 

